Home / 2,510.20-3,457.38-2,178.64

Finding the Fourth Proportional to 2,510.20, 3,457.38 and 2,178.64

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Solution

The fourth proportional to 2,510.20, 3,457.38 and 2,178.64 is: 3,000.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,510.20 : 3,457.38 = 2,178.64 : x
  2. Step 2: Convert to fraction form
    2,510.20/3,457.38 = 2,178.64/x
  3. Step 3: Cross multiply
    2,510.20x = 3,457.38 × 2,178.64
  4. Step 4: Simplify right side
    2,510.20x = 7,532,386.36
  5. Step 5: Solve for x
    x = 7,532,386.36/2,510.20
  6. Step 6: Final answer
    x = 3,000.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.